Roller-skate



2 Sheets-Sheet 1.

F. G. OSBORN. ROLLER SKATE.

(No Model.)

No. 327,819. Patented Oct. 6, 1885,

fi i?,

2 Sheets-Sheet 2.

(No Model.)

F. G. OSBORN.

ROLLER SKATE.

No. 327,819. Patented Oct-6, 1885.

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UNITED STATES PATENT OFFICE.

FREDERICK G. OSBORN, OF NEVARK, NEV JERSEY.

ROLLER-SKATE.

SPECIFICATION forming part of Letters Patent No. 327,819, dated October 6, 1885, Application filed May 1, 1885. Sei-inl No. 1G |,065. (No model.)

T all whom it may concern.-

Be it known that I, FREDERICK G. OsBoRN, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Roller-Skates; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention has reference to roller-skates; and the novelty consists in the construction, arrangement, and adaptation of parts, as will be more fully hereinafter set forth, and specifically pointed out in the claims.

The first part of the invention relates to a novel roller-support. I employ slotted standards and a spring-socket arranged between the two. These parts are rigidly secured to the under surface of the metal sole, and the rollers are supported in a frame which, having radial arms which operate looselyin the slotted standards,bears upon a stout metal spring held in the socket.

The second part of the invention relates to an adjustable sole. I make the sole in two parts, and provide one part with recesses and the other part with projections. Both parts are slotted longitudinally, and a set-screw secures them in desired position.

The third part of the invention relates to a peculiar toe-clamp. rlhe two halves of the clamp upon sides which face each other under the sole are provided with racks, and a pinion held between the two and turned by a proper key turns them in opposite directions simul taneously.

These features are fully illustrated in the accompanying drawings, which form a part of this specication, and in which Figure l is a side elevation with the rear rollers removed and with one of the supports in section. Fig. 2 is a top plan view; Fig. 3, a horizontal section to show the sole-joint, and Fig. et a detail of the clamp; and Fig. 5 is a perspective of one section thereof.

Referring to the drawings, A designates the sole made in two parts, A A2, and each part provided with a longitudinal slot, c. The section A has a series of holes, b, which are adapted to receive pins b rigid upon the section A", and this connection is made upon each side of the slot a. The pins b have disks b2 upon each side of the section A2 to give them a firm bearing.

A bolt, B, operates loosely in the slots a. It has a disk, b, which bears upon the upper surface of the part A2, a disk, b4, between the parts A A2, and a thumb-nut, B, bearing a disk, b5, against the lower surface of the part A. The lower end of the bolt B is headed, to prevent the loss of the nut B'.

The roller-supports are substantially alike, and in describing one set of mechanism for this purpose I shall set forth all that is necessary. These supports consist of standards C C', the latter being the longest, and both inclining away from the center. These standards are iirmly secured to their proper sole-section, and have slots c, which receive the arms d of the axle-plate D.

Secured firmly to the under face of the sole, between the standards C C, is a spring-socket, E, and a spring, F, having a bearing in this socket, bears with its other end against the axle-plate, forcing the arms d to the lowest limits of the slots c. These springs are of stout metal, and are made to compress but slightly with the weight of an ordinary skater. The axle-plate carries the axle-spindles h which receive the rollers H.

Upon the lower face of the sole-plate is scoured a guide-frame, I, between the legs 'i of which are received the two parts of the shoeclamp L. Each part of this clamp is formed with au aperture, Z, one side of which has a rack, Z. These clamp parts lie one upon the other within the limits of the frame I, and when in proper position the rack-surfaces Z face each other. A pinion, M, engages both of the racks, and this pinion is rigid upon a shaft, M', journaled in the sole and frame I, as shown. The shaft Mhas a key end at m, and a nut, m', serves to hold the whole in proper relative positions.

In details of construction modifications may be made within wide limits without departing IOO from the principle or sacrificing the advantages of my invention, the essential features of which have been fully made known.

Having described this invention, what I claim is- 1. A skate having its sole-plate composed of two slotted overlapping sections, one of which is provided with a longitudinal series of lateral perforations and the other with a stud, as b', rigidly secured by the disks b2, and

an adj usting-bolt having similar disks and its opposite ends adapted to prevent the nut from leaving the bolt when loosened thereon, substantially as specified.

2. A skate having its sole-plate composed of two overlapping sections, one of which is provided with perforations and the opposite one with studs b', having disks b2, for rigidly securing the studs to the said section, so that the projected free ends of the said studs may be readily inserted and removed from the perfoi-ations, substantially as specified.

3. The combination of the bolt B, having` its opposite ends headed, the disks b3 and b4, arranged on the said bolt above and below one of the sole-plates, and the thun1bnut arranged on the bolt beneath the sole-plate to serve in a roller-skate, substantially as specified.

4. The combination, with a skate sole-plate and its hangers, ofthe axle, the axle-plate constructed as described, the spring arranged between the same and the sole-plate, and the pin for fixing the axle to the axle-plate, substantially as specied.

5. In a roller-skate, the combination of 35 the two similar toe-clamping sections having their Shanks slotted, as at Z, to present an opposite toothed and plain edge, the vertical shaft passing through the said slots, and the pinion rigidly secured to said shaft and engaging the said toothed edges to move one clamp over the other in opposite directions, substantially as specified.

In testimony whereof I afiix my signature in presence of two witnesses.

FREDK. G. OSBORN. 

